发明名称 Golf sand wedge and putter
摘要 A golf club for use as a sand wedge and as a putter, in which the ball-engaging face of the club head has a rectangular central opening through which sand can pass during a stroke while the club is used as a sand wedge. Upper and lower flat ramp surfaces are dimensioned, angled and spaced so as to contact the golf ball at intermediate portions between the outer and inner edges of the ramp surfaces. The upper and lower edges of the ramp surfaces are spaced apart by a distance approximately equal to the diameter of the golf ball to be driven, so as to avoid undesirable binding or cutting of the ball.
申请公布号 US5090703(A) 申请公布日期 1992.02.25
申请号 US19910689995 申请日期 1991.04.23
申请人 KOUMARIANOS, ANGELO N. 发明人 KOUMARIANOS, ANGELO N.
分类号 A63B53/04 主分类号 A63B53/04
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